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ASRock Pro 4 Wireless Stereo Headset 135X49MM Manual

ASRock Pro 4 Wireless Stereo Headset 135X49MM Manual Image

Pro 4 Wireless Stereo Headset 135X49MM
User Manual


Wireless Version: V5.0+EDR
Support Agreement: A2DP1.3/HFP1.6/HSP1.2
Bluetooth frequency: 2.4GHz
Bluetooth transmission distance: 10-15m
Battery capacity: 30mAh
Standby time: 40Hours
Playing/Talking time: 2-2.5hours
Charging box capacity: 260mAh

Product instructions

  1. Operation steps
    Bilateral use: Open the top cover of the charging box and press the multi-function key of the charging box to turn it on. Take out the headphones. The headphones automatically turn on — the headphone indicator lights flash alternately red and blue in the main ear and blue in the second ear once in S seconds Headphone pairing with mobile phone: The red and blue alternating flashing in the headphone’ main ear indicates that it needs to be paired with Bluetooth. Open the mobile phone settings Open Bluetooth — Search the Bluetooth name” Pro4″ and click on the mobile phone connection.
  2. Steps for switching on and off of charger earphone
    Earphone: Long press multi-functionkeyfor3secondstoturnon the blue light flash, long press multi-function key for 4 seconds to turn off the red light, but the headphone into the charging bin to turn off automatically, and tum off automatically for 3 minutes when the headphone is disconnected.
    Charging bin: press the multi-function key to turn on, the green light is always on, press the multi-function key to turn off, and the green light is off.
  3. Charging indication
    When the charging bin is charged, the red light is always on and the indicator lights go out when it is full.
    when the charging bin charges the headphones, the green light in the charging bin is always on, and the red light in the headphones in always on.
    After filling, the charging bin and headphone indicator lights are out.

Product schematic diagram

The last song Double click right ear
The next Double click left ear
Play/ PauseDialing Single click normal
Answer the phone Click the button when calling
Refusing the phone Press 2 seconds button for calling time
Siri function Press 3 seconds long
Earphone Matching Hold the switch for 3 seconds at the same time with both hands until the red and blue lights flicker alternately and release. Just double-click any headset multi-function key, and the machine matches successfully. (Indicator: double-click multi- a function key on one side is red and blue lights alternately, and the other side is blue lights once for 5 seconds.)


  1. The earphones should be stored in a dry and ventilated environment. to avoid oil, water, moisture, and dust affecting product performance.
  2. Avoid using stimulus, organic solvents, or items containing these ingredients to clean the earphone.
  3. The use of earphones should be correct as per the specification, pay attention to use the influence of environment on the earphones In order to ensure the smooth connection, it’s recommended that the distance between the earphones and phones within 10 meters
  4. If the earphones failed to connect or with poor connection, pls do not take apart the earphones or the accessories on your own, Otherwise, no warranty.
  5. Regarding charging earphones. Pls use the standard USB cable or pointed charging cable from our company to charge the earphones.
  6. in order to ensure normal use, please ensure sufficient power of the earphones.

Pro 4
With Charging Case

Made in China